【#Tech24H】Scientists at Carnegie Mellon University in the USA have developed a new 3D printing process, successfully creating micro Delta robots named microDeltas, with heights of just 1.4 mm and 0.7 mm. Compared to similar robots, they are the smallest and fastest developed to date. Experiments confirmed that reducing the size not only enhanced the robots’ precision to the sub-micrometer level but also increased their operating frequency to over 1 kHz, even enabling them to launch salt particles equivalent to 7.4% of their own mass. These robots are expected to play significant roles in fields such as micro-manipulation, micro-assembly, minimally invasive surgery, and wearable haptic devices.